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  <div class="headertitle"><div class="title">buffer.hpp</div></div>
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<a href="../../da/d1d/buffer_8hpp.html">浏览该文件的文档.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span> </div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="preprocessor">#ifndef __BUFFER_HPP__</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="preprocessor">#define __BUFFER_HPP__</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span> </div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="preprocessor">#include &lt;string&gt;</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="preprocessor">#include &lt;memory&gt;</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="preprocessor">#include &lt;atomic&gt;</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="preprocessor">#include &lt;string.h&gt;</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="preprocessor">#include &quot;<a class="code" href="../../d6/de9/typetraits_8hpp.html">typetraits.hpp</a>&quot;</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="keyword">namespace </span><a class="code hl_namespace" href="../../df/d8d/namespacewheels.html">wheels</a></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span>{</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span>    <span class="keyword">template</span>&lt; <span class="keyword">typename</span> Type &gt;</div>
<div class="foldopen" id="foldopen00023" data-start="{" data-end="};">
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html">   23</a></span>    <span class="keyword">class </span><a class="code hl_class" href="../../d7/d18/classwheels_1_1_buffer.html">Buffer</a>:<span class="keyword">public</span> <a class="code hl_struct" href="../../d0/da6/structtype__traits.html">type_traits</a>&lt; Type &gt;</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span>    {</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span>    <span class="keyword">public</span>:</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span>        <span class="comment">/*typedef typename ltrpTypeTraits::value_type   value_type;</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="comment">          typedef typename ltrpTypeTraits::pointer  pointer;</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="comment">          typedef typename ltrpTypeTraits::refrence refrence;</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="comment">        */</span></div>
<div class="foldopen" id="foldopen00030" data-start="{" data-end="};">
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1">   30</a></span>        <span class="keyword">enum</span> <a class="code hl_enumeration" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1">err_code</a>{</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1ab8f9048b1830dcd0a76db45803e71141">   31</a></span>            <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1ab8f9048b1830dcd0a76db45803e71141">ERR_BASE</a> = -1000,</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a37e0a5ea92dd6f8457cb53e801e1c2a8">   32</a></span>            <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a37e0a5ea92dd6f8457cb53e801e1c2a8">ERR_ALLOC_MEM</a>,</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1aabbdee9fa3c8df928fa845208c4aa89a">   33</a></span>            <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1aabbdee9fa3c8df928fa845208c4aa89a">ERR_DATA_EMPTY</a>,</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a8247209eff659f6bc1fe35c9de26f0b8">   34</a></span>            <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a8247209eff659f6bc1fe35c9de26f0b8">ERR_DEST_NULL</a>,</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1af3b656f07c2be4607531d66937cb85d7">   35</a></span>            <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1af3b656f07c2be4607531d66937cb85d7">ERR_SRC_NULL</a>,</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span>            <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1adf0a4df2e14653b682290063574288a1">OK</a> = 0</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1adf0a4df2e14653b682290063574288a1">   37</a></span>        };</div>
</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span>    <span class="keyword">private</span>:</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span>        std::atomic&lt; size_t &gt;        m_len;             <span class="comment">// 存储长度</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span>        std::atomic&lt; size_t &gt;        m_size;            <span class="comment">// 数据长度, 是数据元素的长度</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span>        std::shared_ptr&lt; Type &gt;      mp_data;           <span class="comment">// 数据指针</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span>    <span class="keyword">private</span>:</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span>        <span class="keywordtype">void</span> deleter( Type * p ){</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span>            <span class="keywordflow">if</span>( p ) free( p );</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span>        }</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span>    <span class="keyword">public</span>:</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a0491dc3933237e96a4e9fb2830c56dd5">   50</a></span>        <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a0491dc3933237e96a4e9fb2830c56dd5">Buffer</a>(): m_len( 0 ) , mp_data( nullptr , [this]( Type * pt ){ <span class="keywordflow">if</span>( pt ) free( pt ); }) { }</div>
<div class="foldopen" id="foldopen00056" data-start="{" data-end="}">
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#af88040bebf3c1079d7dad58f5e6a65ef">   56</a></span>        <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#af88040bebf3c1079d7dad58f5e6a65ef">Buffer</a>( <span class="keywordtype">size_t</span> len ): m_len( len ), mp_data( nullptr , [this]( Type * pt ){ <span class="keywordflow">if</span>( pt ) free( pt ); }){</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span>            Type * <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> = ( Type *)malloc( <span class="keyword">sizeof</span>( Type ) * len );</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span>            <span class="keywordflow">if</span>( <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> ){</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>                mp_data.reset( <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> );</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>            }<span class="keywordflow">else</span>{</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>                <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a37e0a5ea92dd6f8457cb53e801e1c2a8">ERR_ALLOC_MEM</a>;</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>            }</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>        }</div>
</div>
<div class="foldopen" id="foldopen00069" data-start="{" data-end="}">
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#aadce982a0a64ea1f2d8619a3fae3373a">   69</a></span>        <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#aadce982a0a64ea1f2d8619a3fae3373a">Buffer</a>( Type * src , <span class="keywordtype">size_t</span> len ):</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>            m_len( len ) ,</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>            mp_data( nullptr , [this]( Type * pt ){ <span class="keywordflow">if</span>( pt ) free( pt ); } ){</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>            Type * <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> = ( Type *)malloc( <span class="keyword">sizeof</span>( Type  ) * len );</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>            <span class="keywordflow">if</span>( <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> ){</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span>                <span class="keywordflow">if</span>( src != <span class="keyword">nullptr</span> )</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>                    memcpy( <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> , src , len );</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>                <span class="keywordflow">else</span>{</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span>                    mp_data.reset( src );</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>                    <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1af3b656f07c2be4607531d66937cb85d7">ERR_SRC_NULL</a>;</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>                }</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span>                mp_data.reset( <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> );</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>            }<span class="keywordflow">else</span>{</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>                <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a37e0a5ea92dd6f8457cb53e801e1c2a8">ERR_ALLOC_MEM</a>;</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>            }</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span>        }</div>
</div>
<div class="foldopen" id="foldopen00090" data-start="{" data-end="}">
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#aa1389f8ba65f8fe663d68e1da67e8644">   90</a></span>        <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#aa1389f8ba65f8fe663d68e1da67e8644">Buffer</a>( <span class="keyword">const</span> <a class="code hl_class" href="../../d7/d18/classwheels_1_1_buffer.html">Buffer&lt;Type&gt;</a>&amp; b ): mp_data( nullptr , [this]( Type * pt ){ <span class="keywordflow">if</span>( pt ) free( pt ); } ){</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span>            m_size = b.m_size.load();</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>            m_len = b.m_len.load();</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span>            mp_data = b.mp_data;</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span>        }</div>
</div>
<div class="foldopen" id="foldopen00098" data-start="{" data-end="}">
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#acbf726eb03d559903d01786e73f7786a">   98</a></span>        <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#acbf726eb03d559903d01786e73f7786a">Buffer</a>( <a class="code hl_class" href="../../d7/d18/classwheels_1_1_buffer.html">Buffer&lt;Type&gt;</a> &amp;&amp; b ) : mp_data( nullptr , [this]( Type * pt ){ <span class="keywordflow">if</span>( pt ) free( pt ); } ){</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span>            m_size = b.m_size.load();</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span>            m_len = b.m_len.load();</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span>            mp_data = std::move( b.mp_data );</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span>        }</div>
</div>
<div class="foldopen" id="foldopen00106" data-start="{" data-end="}">
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a322db9ba7ef3ca4971c16fc4f49ed50b">  106</a></span>        <a class="code hl_class" href="../../d7/d18/classwheels_1_1_buffer.html">Buffer&lt;Type&gt;</a> &amp; <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a322db9ba7ef3ca4971c16fc4f49ed50b">operator=</a>( <span class="keyword">const</span> <a class="code hl_class" href="../../d7/d18/classwheels_1_1_buffer.html">Buffer&lt;Type&gt;</a>&amp; b ){</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>            m_size = b.m_size;</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span>            m_len = b.m_len;</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span>            mp_data = b.mp_data;</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span> </div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span>            <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span>        }</div>
</div>
<div class="foldopen" id="foldopen00116" data-start="{" data-end="}">
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a54abe4f74aba35623fbf68e233d42360">  116</a></span>        <a class="code hl_class" href="../../d7/d18/classwheels_1_1_buffer.html">Buffer&lt;Type&gt;</a> &amp; <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a54abe4f74aba35623fbf68e233d42360">operator=</a>( <a class="code hl_class" href="../../d7/d18/classwheels_1_1_buffer.html">Buffer&lt;Type&gt;</a>&amp;&amp; b ){</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span>            m_size = b.m_size;</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span>            m_len = b.m_len;</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>            mp_data = std::move( b.mp_data );</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span> </div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span>            <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>        }</div>
</div>
<div class="foldopen" id="foldopen00129" data-start="{" data-end="}">
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#adbe18f0086fba2fe0485b0bf9802cf76">  129</a></span>        <a class="code hl_class" href="../../d7/d18/classwheels_1_1_buffer.html">Buffer&lt;Type&gt;</a> &amp; <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#adbe18f0086fba2fe0485b0bf9802cf76">push_back</a>( Type <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> ){</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span>            Type * pt = mp_data.get();</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span>            <span class="keywordflow">if</span>( m_len &gt; m_size ){</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span>                pt[ m_size.load() ] = <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a>;</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span>                m_size ++;</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span>            }<span class="keywordflow">else</span>{</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span>                pt = ( Type * )malloc( m_len * 2 );</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span>                <span class="keywordflow">if</span>( pt ){</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span>                    m_len = m_len.load() * 2;</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span>                    pt[ m_size ] = <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a>;</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span>                    m_size ++;</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span>                }<span class="keywordflow">else</span>{</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span>                    <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a37e0a5ea92dd6f8457cb53e801e1c2a8">ERR_ALLOC_MEM</a>;</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>                }</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span>            }</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span>            <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span>        }</div>
</div>
<div class="foldopen" id="foldopen00150" data-start="{" data-end="}">
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a4c8bca1b82e660f12bf8aca9bc38f579">  150</a></span>        <a class="code hl_class" href="../../d7/d18/classwheels_1_1_buffer.html">Buffer&lt;Type&gt;</a> &amp; <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a4c8bca1b82e660f12bf8aca9bc38f579">pop_front</a>( Type &amp;<a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> )  {</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span>            <span class="keywordflow">if</span>( !mp_data ) <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1aabbdee9fa3c8df928fa845208c4aa89a">ERR_DATA_EMPTY</a>;</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span>            <span class="keywordflow">if</span>( m_size == 0 ) <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1aabbdee9fa3c8df928fa845208c4aa89a">ERR_DATA_EMPTY</a>;</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span> </div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span>            Type *pt = mp_data.get() , *pt2 = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span>            <span class="keywordflow">if</span>( pt == <span class="keyword">nullptr</span> ){</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span>                <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a>.clear();</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>                <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1aabbdee9fa3c8df928fa845208c4aa89a">ERR_DATA_EMPTY</a>;</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span>            }</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span>            <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> = pt[ 0 ];</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span>            pt ++;</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span>            m_size --;</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span>            pt2 = ( Type *)malloc( m_len );</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span>            <span class="keywordflow">if</span>( pt2 ){</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span>                memcpy( pt2 , pt , m_size.load() * <span class="keyword">sizeof</span>( Type ) );</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>            }<span class="keywordflow">else</span>{</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>                <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a>.clear();</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>                <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a37e0a5ea92dd6f8457cb53e801e1c2a8">ERR_ALLOC_MEM</a>;</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span>            }</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span> </div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>            mp_data.reset( pt2 );</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>            <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>        }</div>
</div>
<div class="foldopen" id="foldopen00177" data-start="{" data-end="}">
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a6fad945901a4815fdc0255e3ba864091">  177</a></span>        <span class="keywordtype">void</span> <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a6fad945901a4815fdc0255e3ba864091">clear</a>(){</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>            m_size = 0;</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span>        }</div>
</div>
<div class="foldopen" id="foldopen00183" data-start="{" data-end="}">
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a009977ecee8eb54275ecaf260aed85f7">  183</a></span>        <span class="keywordtype">void</span> <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a009977ecee8eb54275ecaf260aed85f7">erase</a>( Type d = 0) {</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span>            Type *pt = mp_data.get();</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span>            memset( pt , d , m_size * <span class="keyword">sizeof</span>( d ) );</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span>            m_size = 0;</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span>        }</div>
</div>
<div class="foldopen" id="foldopen00191" data-start="{" data-end="}">
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a6bbcd6ef87271514166eb0148f0468fc">  191</a></span>        <span class="keywordtype">size_t</span> <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a6bbcd6ef87271514166eb0148f0468fc">size</a>(){</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span>            <span class="keywordflow">return</span> m_size.load();</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span>        }</div>
</div>
<div class="foldopen" id="foldopen00197" data-start="{" data-end="}">
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#ab8d10c0c082f9265cb92251e23b191f9">  197</a></span>        <span class="keywordtype">size_t</span> <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#ab8d10c0c082f9265cb92251e23b191f9">length</a>() {</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span>            <span class="keywordflow">return</span> m_len.load();</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span>        }</div>
</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span> </div>
<div class="foldopen" id="foldopen00204" data-start="{" data-end="}">
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">  204</a></span>        Type * <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a>(){</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span>            <span class="keywordflow">return</span> mp_data.get();</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span>        }</div>
</div>
<div class="foldopen" id="foldopen00214" data-start="{" data-end="}">
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a120b0c02be1eab84ce66e944f6575133">  214</a></span>        <a class="code hl_class" href="../../d7/d18/classwheels_1_1_buffer.html">Buffer&lt; Type &gt;</a>&amp; <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a120b0c02be1eab84ce66e944f6575133">data</a>( <span class="keyword">const</span> Type * <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> , <span class="keywordtype">size_t</span> len )  {</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span>            <span class="keywordflow">if</span>( <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> == <span class="keyword">nullptr</span> || len == 0 ){</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span>                <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1af3b656f07c2be4607531d66937cb85d7">ERR_SRC_NULL</a>;</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span>            }</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span> </div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span>            Type * pt = mp_data.get();</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span>            <span class="keywordflow">if</span>( m_len &lt; len ){</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span> </div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span>                <span class="keywordflow">if</span>( pt )</div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span>                    pt = ( Type* )realloc( pt , <span class="keyword">sizeof</span>( Type ) * len );</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span>                <span class="keywordflow">else</span></div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span>                    pt = ( Type *)malloc( <span class="keyword">sizeof</span>( Type ) * len );</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span> </div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span>                <span class="keywordflow">if</span>( pt ){</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span>                    m_len = len;</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span>                }<span class="keywordflow">else</span>{</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span>                    <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a37e0a5ea92dd6f8457cb53e801e1c2a8">ERR_ALLOC_MEM</a>;</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span>                }</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span>            }</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span> </div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>            <span class="keywordflow">if</span>( pt ){</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span> </div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span>                memcpy( pt , <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> , len );</div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span>                m_size = len;</div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span>                mp_data.reset( pt );</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span>            }</div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span>            <span class="keywordflow">else</span>{</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span>                <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a8247209eff659f6bc1fe35c9de26f0b8">ERR_DEST_NULL</a>;</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span>            }</div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span> </div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span>            <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span>        }</div>
</div>
<div class="foldopen" id="foldopen00253" data-start="{" data-end="}">
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a37b8bd691309743927b2c6ac78039672">  253</a></span>        <a class="code hl_class" href="../../d7/d18/classwheels_1_1_buffer.html">Buffer&lt; Type &gt;</a>&amp; <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a37b8bd691309743927b2c6ac78039672">append</a>( Type * <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> , <span class="keywordtype">size_t</span> len ){</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span>            <span class="keywordflow">if</span>( <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> == <span class="keyword">nullptr</span> ) <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1af3b656f07c2be4607531d66937cb85d7">ERR_SRC_NULL</a>;</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span>            <span class="keywordflow">if</span>( len == 0 ) <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1af3b656f07c2be4607531d66937cb85d7">ERR_SRC_NULL</a>;</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span> </div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span>            Type * pt = mp_data.get();</div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span>            <span class="keywordflow">if</span>( m_len &lt; m_size + len ){</div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span>                <span class="keywordflow">if</span>( mp_data ){</div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span>                    pt = ( Type *)realloc( pt , <span class="keyword">sizeof</span>( Type ) * m_size + len );</div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span>                }<span class="keywordflow">else</span>{</div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span>                    pt = (Type *)malloc( <span class="keyword">sizeof</span>( Type ) * (m_size + len) );</div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span>                }</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span> </div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span>                <span class="keywordflow">if</span>( pt == <span class="keyword">nullptr</span> ){ <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a37e0a5ea92dd6f8457cb53e801e1c2a8">ERR_ALLOC_MEM</a>; }</div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span> </div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span>                m_len = m_size + len;</div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span> </div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span>            }</div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span> </div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span>            <span class="keywordflow">if</span>( pt ){</div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span>                memcpy( pt + m_size , <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> , len );</div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span>                m_size += len;</div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span>                mp_data.reset( pt );</div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span>            }</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span> </div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span>            <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span>        }</div>
</div>
<div class="foldopen" id="foldopen00287" data-start="{" data-end="}">
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#aa9d2d0aa80eaa7287d336f1e3c98a761">  287</a></span>        <a class="code hl_class" href="../../d7/d18/classwheels_1_1_buffer.html">Buffer&lt;Type&gt;</a> &amp;<a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#aa9d2d0aa80eaa7287d336f1e3c98a761">insert</a>( <span class="keywordtype">size_t</span> pos , Type * <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> , <span class="keywordtype">size_t</span> len ){</div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span>            <span class="keywordflow">if</span>( <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> == <span class="keyword">nullptr</span> ) <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1af3b656f07c2be4607531d66937cb85d7">ERR_SRC_NULL</a>;</div>
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span>            <span class="keywordflow">if</span>( len == 0 ) <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1af3b656f07c2be4607531d66937cb85d7">ERR_SRC_NULL</a>;</div>
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span> </div>
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span>            Type * pt = mp_data.get();</div>
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span> </div>
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span>            <span class="keywordflow">if</span>( m_len &lt; m_size + len ){                     <span class="comment">// 需要重新分配内存</span></div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span>                <span class="keywordflow">if</span>( mp_data ){</div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span>                    pt = ( Type *)realloc( pt , <span class="keyword">sizeof</span>( Type ) * m_size + len );</div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span>                }<span class="keywordflow">else</span>{</div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span>                    pt = (Type *)malloc( <span class="keyword">sizeof</span>( Type ) * (m_size + len) );</div>
<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span>                }</div>
<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span> </div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span>                <span class="keywordflow">if</span>( pt == <span class="keyword">nullptr</span> ){ <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a37e0a5ea92dd6f8457cb53e801e1c2a8">ERR_ALLOC_MEM</a>; }</div>
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span> </div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span>                m_len = m_size + len;</div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span>            }</div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span> </div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span>            <span class="keywordflow">if</span>( pt ){</div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span>                memcpy( pt + pos , pt + pos + len , len );   <span class="comment">// 将原来的数据向后移动</span></div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span>                memcpy( pt + pos , <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">data</a> , len );</div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span>                m_size += len;</div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span>                mp_data.reset( pt );</div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span>            }</div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span>            <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span>        }</div>
</div>
<div class="foldopen" id="foldopen00319" data-start="{" data-end="}">
<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a01e7e91f07f875097aab943ea11f5563">  319</a></span>        Type * <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a01e7e91f07f875097aab943ea11f5563">clone</a>( ){</div>
<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span>            Type  * ret = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span> </div>
<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span>            ret = ( Type *)malloc( <span class="keyword">sizeof</span>( Type ) * m_size.load() );</div>
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span>            <span class="keywordflow">if</span>( ret ){</div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span>                <span class="keywordflow">if</span>( mp_data )</div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span>                    memcpy( ret , mp_data.get() , <span class="keyword">sizeof</span>( Type ) * m_size.load() );</div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span>                <span class="keywordflow">else</span></div>
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span>                    <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1af3b656f07c2be4607531d66937cb85d7">ERR_SRC_NULL</a>;</div>
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span>            }<span class="keywordflow">else</span>{</div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span>                <span class="keywordflow">throw</span> <a class="code hl_enumvalue" href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a37e0a5ea92dd6f8457cb53e801e1c2a8">ERR_ALLOC_MEM</a>;</div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span>            }</div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span>            <span class="keywordflow">return</span> ret;</div>
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span>        }</div>
</div>
<div class="foldopen" id="foldopen00338" data-start="{" data-end="}">
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"><a class="line" href="../../d7/d18/classwheels_1_1_buffer.html#a1761d6f2bb06c87c66f426b0b98160d7">  338</a></span>        Type * <a class="code hl_function" href="../../d7/d18/classwheels_1_1_buffer.html#a1761d6f2bb06c87c66f426b0b98160d7">slice</a>( <span class="keywordtype">size_t</span> from , <span class="keywordtype">size_t</span> len ){</div>
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span>            Type   * ret = <span class="keyword">nullptr</span>;</div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span> </div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span>            <span class="keywordflow">return</span> ret;</div>
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span>        }</div>
</div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span>    };</div>
</div>
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span> </div>
<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"><a class="line" href="../../df/d8d/namespacewheels.html#ade519ba7f403695481e07b0ee393ba10">  345</a></span>    <span class="keyword">typedef</span> <a class="code hl_class" href="../../d7/d18/classwheels_1_1_buffer.html">Buffer&lt; uint8_t &gt;</a>  <a class="code hl_typedef" href="../../df/d8d/namespacewheels.html#ade519ba7f403695481e07b0ee393ba10">BufferByte</a>;</div>
<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span>}</div>
<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span><span class="comment">/*</span></div>
<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span><span class="comment">  typedef Buffer&lt; uint16_t &gt; BufferWord;</span></div>
<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span><span class="comment">  typedef Buffer&lt; uint32_t &gt; BufferDWord;</span></div>
<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span><span class="comment">*/</span></div>
<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html">wheels::Buffer</a></div><div class="ttdef"><b>定义</b> <a href="#l00023">buffer.hpp:24</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a009977ecee8eb54275ecaf260aed85f7"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a009977ecee8eb54275ecaf260aed85f7">wheels::Buffer::erase</a></div><div class="ttdeci">void erase(Type d=0)</div><div class="ttdoc">使用给定的数据覆盖所有的数据，并将数据长度标记为0</div><div class="ttdef"><b>定义</b> <a href="#l00183">buffer.hpp:183</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a01e7e91f07f875097aab943ea11f5563"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a01e7e91f07f875097aab943ea11f5563">wheels::Buffer::clone</a></div><div class="ttdeci">Type * clone()</div><div class="ttdoc">构造拷贝一份新的数据并返回数据指针</div><div class="ttdef"><b>定义</b> <a href="#l00319">buffer.hpp:319</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a0491dc3933237e96a4e9fb2830c56dd5"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a0491dc3933237e96a4e9fb2830c56dd5">wheels::Buffer::Buffer</a></div><div class="ttdeci">Buffer()</div><div class="ttdoc">默认的初始化函数</div><div class="ttdef"><b>定义</b> <a href="#l00050">buffer.hpp:50</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a0d288d3bf1d3a0614fc781504712e2b1"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1">wheels::Buffer::err_code</a></div><div class="ttdeci">err_code</div><div class="ttdef"><b>定义</b> <a href="#l00030">buffer.hpp:30</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a0d288d3bf1d3a0614fc781504712e2b1a37e0a5ea92dd6f8457cb53e801e1c2a8"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a37e0a5ea92dd6f8457cb53e801e1c2a8">wheels::Buffer::ERR_ALLOC_MEM</a></div><div class="ttdeci">@ ERR_ALLOC_MEM</div><div class="ttdef"><b>定义</b> <a href="#l00032">buffer.hpp:32</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a0d288d3bf1d3a0614fc781504712e2b1a8247209eff659f6bc1fe35c9de26f0b8"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1a8247209eff659f6bc1fe35c9de26f0b8">wheels::Buffer::ERR_DEST_NULL</a></div><div class="ttdeci">@ ERR_DEST_NULL</div><div class="ttdef"><b>定义</b> <a href="#l00034">buffer.hpp:34</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a0d288d3bf1d3a0614fc781504712e2b1aabbdee9fa3c8df928fa845208c4aa89a"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1aabbdee9fa3c8df928fa845208c4aa89a">wheels::Buffer::ERR_DATA_EMPTY</a></div><div class="ttdeci">@ ERR_DATA_EMPTY</div><div class="ttdef"><b>定义</b> <a href="#l00033">buffer.hpp:33</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a0d288d3bf1d3a0614fc781504712e2b1ab8f9048b1830dcd0a76db45803e71141"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1ab8f9048b1830dcd0a76db45803e71141">wheels::Buffer::ERR_BASE</a></div><div class="ttdeci">@ ERR_BASE</div><div class="ttdef"><b>定义</b> <a href="#l00031">buffer.hpp:31</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a0d288d3bf1d3a0614fc781504712e2b1adf0a4df2e14653b682290063574288a1"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1adf0a4df2e14653b682290063574288a1">wheels::Buffer::OK</a></div><div class="ttdeci">@ OK</div><div class="ttdef"><b>定义</b> <a href="#l00037">buffer.hpp:36</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a0d288d3bf1d3a0614fc781504712e2b1af3b656f07c2be4607531d66937cb85d7"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a0d288d3bf1d3a0614fc781504712e2b1af3b656f07c2be4607531d66937cb85d7">wheels::Buffer::ERR_SRC_NULL</a></div><div class="ttdeci">@ ERR_SRC_NULL</div><div class="ttdef"><b>定义</b> <a href="#l00035">buffer.hpp:35</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a120b0c02be1eab84ce66e944f6575133"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a120b0c02be1eab84ce66e944f6575133">wheels::Buffer::data</a></div><div class="ttdeci">Buffer&lt; Type &gt; &amp; data(const Type *data, size_t len)</div><div class="ttdoc">指定数据.如果原来的内存不足，则会自动分配内存，分配成功后将数据拷贝到内存中。</div><div class="ttdef"><b>定义</b> <a href="#l00214">buffer.hpp:214</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a1761d6f2bb06c87c66f426b0b98160d7"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a1761d6f2bb06c87c66f426b0b98160d7">wheels::Buffer::slice</a></div><div class="ttdeci">Type * slice(size_t from, size_t len)</div><div class="ttdoc">将数据切片，返回切片的内容。</div><div class="ttdef"><b>定义</b> <a href="#l00338">buffer.hpp:338</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a322db9ba7ef3ca4971c16fc4f49ed50b"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a322db9ba7ef3ca4971c16fc4f49ed50b">wheels::Buffer::operator=</a></div><div class="ttdeci">Buffer&lt; Type &gt; &amp; operator=(const Buffer&lt; Type &gt; &amp;b)</div><div class="ttdoc">赋值重载</div><div class="ttdef"><b>定义</b> <a href="#l00106">buffer.hpp:106</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a37b8bd691309743927b2c6ac78039672"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a37b8bd691309743927b2c6ac78039672">wheels::Buffer::append</a></div><div class="ttdeci">Buffer&lt; Type &gt; &amp; append(Type *data, size_t len)</div><div class="ttdoc">在数据后面添加新的数据</div><div class="ttdef"><b>定义</b> <a href="#l00253">buffer.hpp:253</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a4c8bca1b82e660f12bf8aca9bc38f579"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a4c8bca1b82e660f12bf8aca9bc38f579">wheels::Buffer::pop_front</a></div><div class="ttdeci">Buffer&lt; Type &gt; &amp; pop_front(Type &amp;data)</div><div class="ttdoc">删除首元素，并将改元素传回的给定的参数。</div><div class="ttdef"><b>定义</b> <a href="#l00150">buffer.hpp:150</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a5000da57c4b9a0b9bfbef90e7aa8eab3"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a5000da57c4b9a0b9bfbef90e7aa8eab3">wheels::Buffer::data</a></div><div class="ttdeci">Type * data()</div><div class="ttdoc">读取数据指针</div><div class="ttdef"><b>定义</b> <a href="#l00204">buffer.hpp:204</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a54abe4f74aba35623fbf68e233d42360"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a54abe4f74aba35623fbf68e233d42360">wheels::Buffer::operator=</a></div><div class="ttdeci">Buffer&lt; Type &gt; &amp; operator=(Buffer&lt; Type &gt; &amp;&amp;b)</div><div class="ttdef"><b>定义</b> <a href="#l00116">buffer.hpp:116</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a6bbcd6ef87271514166eb0148f0468fc"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a6bbcd6ef87271514166eb0148f0468fc">wheels::Buffer::size</a></div><div class="ttdeci">size_t size()</div><div class="ttdoc">读取内容长度</div><div class="ttdef"><b>定义</b> <a href="#l00191">buffer.hpp:191</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_a6fad945901a4815fdc0255e3ba864091"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#a6fad945901a4815fdc0255e3ba864091">wheels::Buffer::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdoc">删除所有的元素。</div><div class="ttdef"><b>定义</b> <a href="#l00177">buffer.hpp:177</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_aa1389f8ba65f8fe663d68e1da67e8644"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#aa1389f8ba65f8fe663d68e1da67e8644">wheels::Buffer::Buffer</a></div><div class="ttdeci">Buffer(const Buffer&lt; Type &gt; &amp;b)</div><div class="ttdef"><b>定义</b> <a href="#l00090">buffer.hpp:90</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_aa9d2d0aa80eaa7287d336f1e3c98a761"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#aa9d2d0aa80eaa7287d336f1e3c98a761">wheels::Buffer::insert</a></div><div class="ttdeci">Buffer&lt; Type &gt; &amp; insert(size_t pos, Type *data, size_t len)</div><div class="ttdoc">在原来的数据中间添加新的数据</div><div class="ttdef"><b>定义</b> <a href="#l00287">buffer.hpp:287</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_aadce982a0a64ea1f2d8619a3fae3373a"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#aadce982a0a64ea1f2d8619a3fae3373a">wheels::Buffer::Buffer</a></div><div class="ttdeci">Buffer(Type *src, size_t len)</div><div class="ttdoc">按照给定的长度和数据初始化对象。按照长度分配内存，并将数据拷贝到分配好的内存中</div><div class="ttdef"><b>定义</b> <a href="#l00069">buffer.hpp:69</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_ab8d10c0c082f9265cb92251e23b191f9"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#ab8d10c0c082f9265cb92251e23b191f9">wheels::Buffer::length</a></div><div class="ttdeci">size_t length()</div><div class="ttdoc">读取内容长度</div><div class="ttdef"><b>定义</b> <a href="#l00197">buffer.hpp:197</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_acbf726eb03d559903d01786e73f7786a"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#acbf726eb03d559903d01786e73f7786a">wheels::Buffer::Buffer</a></div><div class="ttdeci">Buffer(Buffer&lt; Type &gt; &amp;&amp;b)</div><div class="ttdef"><b>定义</b> <a href="#l00098">buffer.hpp:98</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_adbe18f0086fba2fe0485b0bf9802cf76"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#adbe18f0086fba2fe0485b0bf9802cf76">wheels::Buffer::push_back</a></div><div class="ttdeci">Buffer&lt; Type &gt; &amp; push_back(Type data)</div><div class="ttdoc">在结尾添加一条数据</div><div class="ttdef"><b>定义</b> <a href="#l00129">buffer.hpp:129</a></div></div>
<div class="ttc" id="aclasswheels_1_1_buffer_html_af88040bebf3c1079d7dad58f5e6a65ef"><div class="ttname"><a href="../../d7/d18/classwheels_1_1_buffer.html#af88040bebf3c1079d7dad58f5e6a65ef">wheels::Buffer::Buffer</a></div><div class="ttdeci">Buffer(size_t len)</div><div class="ttdoc">按照给定的长度初始化内存。</div><div class="ttdef"><b>定义</b> <a href="#l00056">buffer.hpp:56</a></div></div>
<div class="ttc" id="anamespacewheels_html"><div class="ttname"><a href="../../df/d8d/namespacewheels.html">wheels</a></div><div class="ttdoc">堆栈信息读取和保存记录</div><div class="ttdef"><b>定义</b> <a href="../../d3/df7/ary__str_8hpp_source.html#l00006">ary_str.hpp:7</a></div></div>
<div class="ttc" id="anamespacewheels_html_ade519ba7f403695481e07b0ee393ba10"><div class="ttname"><a href="../../df/d8d/namespacewheels.html#ade519ba7f403695481e07b0ee393ba10">wheels::BufferByte</a></div><div class="ttdeci">Buffer&lt; uint8_t &gt; BufferByte</div><div class="ttdef"><b>定义</b> <a href="#l00345">buffer.hpp:345</a></div></div>
<div class="ttc" id="astructtype__traits_html"><div class="ttname"><a href="../../d0/da6/structtype__traits.html">type_traits</a></div><div class="ttdoc">类型元函数</div><div class="ttdef"><b>定义</b> <a href="../../d6/de9/typetraits_8hpp_source.html#l00015">typetraits.hpp:16</a></div></div>
<div class="ttc" id="atypetraits_8hpp_html"><div class="ttname"><a href="../../d6/de9/typetraits_8hpp.html">typetraits.hpp</a></div></div>
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